cheb.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:88:e5:5c:63:fb:bb:55:68:42:02:3d:0a:cb:ed:d3:4a:c4 was issued on by Let's Encrypt.

With 8 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=cheb.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:88:e5:5c:63:fb:bb:55:68:42:02:3d:0a:cb:ed:d3:4a:c4
Serial Number (int): 307920132626776898410398181843214315768516
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 90:33:b2:b2:08:27:62:d5:0f:a3:df:16:84:20:71:ae:f4:03:1d:d9
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 6f:48:31:f4:13:ca:22:ac:ad:0d:0d:92:4a:53:0c:2e:ed:54:84:b4
Fingerprint (sha256): e0:92:db:79:da:5e:46:d0:bd:da:4c:ab:ea:06:a2:3e:1f:67:03:ba:f0:01:06:a7:fd:6d:84:dd:72:94:68:df

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate cheb.cz

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cheb.cz

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

cheb.cz
cheb.eu
mestocheb.cz
mestocheb.eu
www.cheb.cz
www.cheb.eu
www.mestocheb.cz
www.mestocheb.eu

Other certificates including the domain name cheb.cz

(limited to 100 certificates)
ssl.cheb.cz
cheb.cz
zakazky.cheb.cz
*.cheb.cz
cheb.cz
zapisyzs.cheb.cz
cheb.cz
cheb.cz
*.cheb.cz
cheb.cz
cheb.cz
zakazky.cheb.cz
cheb.cz
cheb.cz
*.cheb.cz
cheb.cz
cheb.cz
anonymizace.cheb.cz
zakazky.cheb.cz
cheb.cz
cheb.cz
cheb.cz
cheb.cz
cheb.cz
cheb.cz
*.cheb.cz
cheb.cz
tic.cheb.cz
cheb.cz

Certificate

The complete raw certificate details for cheb.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtvLQ6Me5ntN7397WD9gG
Y7hAuWCLjawcVM3qlRO3DDxl4FIpsL5fZZhs2BsJIj12wOLrLlonuK1Mg/P+QQcK
cBwlzocX7oaIYqtEk7IEYCvyPefvmrtW6FjQnIzhl7TGMiJ5VkXBv2qBEp7IBAsR
mECnOU4aVD8XIqWKB9V/YuoD8x3OPFNbfn0gZ6vNygJx7s2IsjFFjam3/ERa3FMW
h15loOJ4q0YhlfoXOfn1nT+phewtA7VoCZ3srLVi2ZobqT0MlrZGMbkqRlJGS/XY
H5j8eUNUJp3cFjadycuGJs5ewwh1JOqv0SnK1hyXJTqREwPSbPQSb+atj7N4LqIK
2QIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 307920132626776898410398181843214315768516
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-26 08:17:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-24 08:17:45 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'cheb.cz'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23095108561697322107250563785159042000064880290705510007003307471258999426952107213853374376752161194273999561137091987797065080189047081701119215111140574982176959422002311267194388820759556495531690069489200649660615979715091156432797187425522008205127522251042744773761615679352261964179012970311068732666763764589451025186958690804875717150851558732365840550113727716250325570868540399689162384276468496642654915123865465304800662478457411813603997493311072805029169307580540716755553850527584849923015852108814687380446453499325503892410097572597737461950133747447083391999704555144885659926574716732829859973849
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							9033b2b2082762d50fa3df16842071aef4031dd9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (110 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cheb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cheb.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mestocheb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mestocheb.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cheb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cheb.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mestocheb.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mestocheb.eu'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b6b4689660000040300473045022100b9263fc46e621b51e90ff5405719bb912a4b32b3ee1b5419d288a92fd7dfa362022064aa042060d25b5fffb62265b0924798810846da7f8506df7835dcb9df05273a0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b6b468966000004030047304502200469cd41b34fb42e31db41d45c2e8db1deef09b51852ef1b535d32a493aff265022100cc68255aff61c24b355b3842fe937b51f844a783680abce76c1c12a2b7382a5d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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